Year 9 Maths · KS3

Geometry: Trigonometry

10 lessons, in the order they are taught. Part of the Year 9 Maths curriculum.

What this topic covers

  1. 1Checking and securing understanding of Pythagoras' theorem
  2. 2Checking and securing understanding of similar triangles
  3. 3Choosing an appropriate method for finding lengths of a triangle
  4. 4Choosing the right trigonometric ratio
  5. 5Problem solving with trigonometry
  6. 6Scaling the right-angled triangle from the unit circle
  7. 7Sine and cosine ratios
  8. 8Tangent ratio
  9. 9The unit circle
  10. 10Using the cosine ratio

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